917 
WTPZ32 KNHC 070831
TCPEP2

BULLETIN
Hurricane John Advisory Number   7
NWS National Hurricane Center Miami FL       EP122018
300 AM MDT Tue Aug 07 2018

...JOHN FORECAST TO BECOME A MAJOR HURRICANE BY WEDNESDAY...


SUMMARY OF 300 AM MDT...0900 UTC...INFORMATION
----------------------------------------------
LOCATION...17.3N 109.1W
ABOUT 310 MI...495 KM SW OF CABO CORRIENTES MEXICO
ABOUT 390 MI...630 KM S OF THE SOUTHERN TIP OF BAJA CALIFORNIA
MAXIMUM SUSTAINED WINDS...90 MPH...150 KM/H
PRESENT MOVEMENT...NW OR 320 DEGREES AT 9 MPH...15 KM/H
MINIMUM CENTRAL PRESSURE...977 MB...28.85 INCHES


WATCHES AND WARNINGS
--------------------
There are no coastal watches or warnings in effect.

Interests in the southern portion of the Baja California peninsula
should monitor the progress of John.


DISCUSSION AND OUTLOOK
----------------------
At 300 AM MDT (0900 UTC), the eye of Hurricane John was located
near latitude 17.3 North, longitude 109.1 West. John is moving
toward the northwest near 9 mph (15 km/h), and a faster
northwestward motion is forecast for the next few days.  On the
forecast track, John should pass to the southwest of Baja
California Sur late Wednesday into Thursday.

Maximum sustained winds are near 90 mph (150 km/h) with higher
gusts.  Some strengthening is forecast during the next 48 hours,
and John is forecast to become a major hurricane tonight or early
Wednesday.

Hurricane-force winds extend outward up to 30 miles (45 km) from the
center and tropical-storm-force winds extend outward up to 115 miles
(185 km).

The estimated minimum central pressure is 977 mb (28.85 inches).


HAZARDS AFFECTING LAND
----------------------
SURF:  Swells generated by John are expected to begin affecting the
coasts of southwestern Mexico and the southern portion of the Baja
California peninsula during the next day or so.  These swells are
likely to cause life-threatening surf and rip current conditions.
Please consult products from your local weather office.


NEXT ADVISORY
-------------
Next complete advisory at 900 AM MDT.

$$
Forecaster Blake